兰州市屋顶绿化雨水收集集成技术及应用

Integration Technique of Rainwater Harvesting for Roof Greening and Its Application in Lanzhou

以集成雨水收集自动灌溉控制系统为研究对象,对绿化屋顶和无绿化屋顶内表面温度进行比较,依据检测结果分析其分布频率和变化规律,并通过统计分析方法对实测数据进行统计描述和方差分析.结果表明:有绿化屋顶内表面温度小于33℃出现的频率占总次数的91.8%,比无绿化屋顶出现频率次数高出7.6%;有绿化屋顶内表面大于35℃的温度总量约为无绿化屋顶的1/3,有绿化屋顶的隔热效果明显,随着气温的升高其隔热性能更加显著.

Taking the integrated rainwater harvesting automatic irrigation control system as the study object,the inner surface temperatures with green roofs and without green roofs were compared,and the distribution frequency and variation rule were analyzed according to the test results.The measured data were described and analyzed by statistical analysis method.The results showed that the occurrence frequency of internal surface temperature below 33℃for green roofs was 91.8%,which is 7.6%more than that of the roofs without green,and the sum of internal surface temperature exceeding 35℃was about 1/3 of that for roofs without green.The heat insulation effect of green roofs was obvious.The thermal insulation characteristic was better as outdoor temperature grew up.